PIONEERPOS G24-LC manual +CAMM, Accumulated Call Meter Maximum, 23 +CAMM Parameters

Chapter 3: AT Commands Reference

+CAMM, Accumulated Call Meter Maximum

This command sets the Advice of Charge accumulated call meter maximum value in the SIM file, EFACMmax. ACMmax contains the maximum number of home units the subscriber is able to consume. When the ACM (Refer to “+CACM, Accumulated Call Meter”, page 3-46) reaches ACMmax, additional calls (mobile-originated and mobile-terminated calls that incur charges) are prohibited, except for emergency calls. Refer to GSM 02.24.

Command Type	Syntax	Response/Action	Remarks
Set	+CAMM=[<acm	OK	The Set command sets the
	max>,<passwd>]	+CME ERROR: <err>	accumulated call meter maximum
			value. SIM PIN2 is required. The value
			that is set remains after a power cycle.
			Note: This command is activated if
			Advice of Charge is supported
			by the network.
Read	+CAMM?	+CAMM: <acmmax>	The Read command displays the
		+CME ERROR: <err>	current value of ACMmax.
Test	+CAMM=?	OK	The Test command indicates whether
			the +CAMM command is functioning.

The following table shows the +CAMM parameters.

		Table 3-23: +CAMM Parameters
<Parameter>		Description
<acmmax>	Accumulated call meter maximum value (similar to CCM; Refer to “+CAOC, Advice
	of Charge”, page 3-44)
	<ccm>
	String type; three bytes of the current call meter value in hexadecimal format (for
	example, 00001E indicates a decimal value of 30). Value is given in home units; bytes
	are similarly coded as the ACMmax value in the SIM.
	Range is from 00001 to FFFFFF.
	0	Disables ACMmax (default)
<passwd>	SIM PIN2 password
	Maximum string length is 8 characters. If this value is exceeded, the command
	terminates in an error. If PIN2 is incorrect, "+CME ERROR: incorrect password" is
	displayed.

Example

AT+CAMM=?

OK AT+CAMM="FFFFFF","2222"

OK AT+CAMM? +CAMM: "FFFFFF"

OK

April 15, 2008 G24-L AT Commands Reference Manual 3-47